矿井地面风硐的改造方案比选与施工

Comparison,Selection and Construction of Transformation Scheme of Mine Surface Air Tunnel

为解决通风系统改造后原地面风硐断面偏小、风速超限的问题,通过在原有地面风硐东侧并联一道钢制矩形通风管道的方法,从而增加风硐断面积,降低风硐内的风速和通风阻力,效果明显。

In order to solve the problems of small cross-section and over limit wind speed of the original ground air tunnel after the ventilation system transformation,a steel rectangular ventilation pipe is paralleled in the east side of the original ground air tunnel,so as to increase the sectional area of the air tunnel,reduce the wind speed and ventilation resistance in the air tunnel,and the effect is obvious.